Quick-release mechanism for saw machine

Abstract

A quick-release mechanism for use in a saw machine includes a mounting member, which has a locating hole and a positioning notch, and a connection member, which has a base attachable to one side of the mounting member. The connection member also includes a retaining block that is movable into and out of the locating hole when set in a first position and secured to the locating hole when moved with the base to a second position. The connection member further includes a positioning block that is maintained spaced from the positioning notch when the retaining block is in the first position, or that engages the positioning notch when the retaining block is moved with the base to the second position.

1 . A quick-release mechanism for use in a saw machine, comprising:
 a mounting member having a first surface, a second surface opposite to said first surface, a top side joining one side of said first surface and one side of said second surface and extending in a first direction, a locating hole extending through said first and second surfaces in a second direction perpendicular to said first direction and disposed adjacent to said top side, and a positioning notch open at the top side and curved inwardly therefrom; and   a connection member selectively connectable to said mounting member, said connection member having a base attachable to said first surface of said mounting member, a retaining block extending from said base and insertable into said locating hole, a positioning block extending from said base and movable with said base into and out of said positioning notch, and a finger strip extended from one end of said base adapted for moving said connection member between a first position and a second position, said retaining block having a retaining head configured correspondingly to the configuration of said locating hole, and said positioning block having a friction head;   wherein, in said first position, said retaining block and said positioning block are movable into and out of said locating hole and said positioning notch respectively; and when said retaining block and said positioning block are in said second position, said retaining head is offset from and engaged with said locating hole and said friction head is engaged with said positioning notch.   
   
   
       2 . The quick-release mechanism as claimed in  claim 1 , wherein said retaining block has a neck connected between said retaining head and said base of said connection member; and said positioning block has a neck connected between said friction head and said base of said connection member. 
   
   
       3 . The quick-release mechanism as claimed  claim 2 , wherein said locating hole is an oblong hole; said neck of said retaining block has the shape of a round rod; said retaining head of said retaining block has the shape of an oblong plate corresponding to the oblong shape of said locating hole; said friction head of said positioning block has the shape of a circular disk; and said neck of said positioning block has the shape of a round rod. 
   
   
       4 . The quick-release mechanism as claimed in  claim 3 , wherein said positioning notch has a single open end formed at the top side and an arcuate profile with a center of a circle defining the arcuate profile based on the center of said locating hole, a positioning end extended inwardly from said open end, and a sloping guide portion disposed at one side of said open end adjacent to said locating hole. 
   
   
       5 . The quick-release mechanism as claimed in  claim 1 , wherein said mounting member is a riving knife.